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[FDTD]下载了一个fdtd算法的源程序,结果里面代码中有*****is([-1.0 1.0]);这样的语句看不懂 [复制链接]

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离线zhuoruizhuc
 
只看楼主 倒序阅读 0楼 发表于: 2012-05-31
%*********************************************************************** *C_[jk@6  
%     3-D FDTD code with PEC boundaries  *C_[jk@6  
%***********************************************************************  *C_[jk@6  
% *C_[jk@6  
%     Program author: Susan C. Hagness   *C_[jk@6  
%                     Department of Electrical and Computer Engineering   *C_[jk@6  
%                     University of Wisconsin-Madison *C_[jk@6  
%                     1415 Engineering Drive  *C_[jk@6  
%                     Madison, WI 53706-1691  *C_[jk@6  
%                     608-265-5739  *C_[jk@6  
%                     hagness@engr.wisc.edu *C_[jk@6  
%"{?[!C ?  
%     Date of this version:  February 2000 %"{?[!C ?  
%"{?[!C ?  
%     This MATLAB M-file implements the finite-difference time-domain %"{?[!C ?  
%     solution of Maxwell's curl equations over a three-dimensional  %"{?[!C ?  
%     Cartesian space lattice comprised of uniform cubic grid cells. %"{?[!C ?  
% %"{?[!C ?  
%     To illustrate the algorithm, an air-filled rectangular cavity %"{?[!C ?  
%     resonator is modeled.  The length, width, and height of the %"{?[!C ?  
%     cavity are 10.0 cm (x-direction), 4.8 cm (y-direction), and %"{?[!C ?  
%     2.0 cm (z-direction), respectively. %"{?[!C ?  
% %"{?[!C ?  
%     The computational domain is truncated using PEC boundary %"{?[!C ?  
%     conditions: %"{?[!C ?  
%          ex(i,j,k)=0 on the j=1, j=jb, k=1, and k=kb planes %"{?[!C ?  
%          ey(i,j,k)=0 on the i=1, i=ib, k=1, and k=kb planes = !I8vQ>  
%          ez(i,j,k)=0 on the i=1, i=ib, j=1, and j=jb planes = !I8vQ>  
%     These PEC boundaries form the outer lossless walls of the cavity.  = !I8vQ>  
= !I8vQ>  
%     The cavity is excited by an additive current source oriented = !I8vQ>  
%     along the z-direction.  The source waveform is a differentiated = !I8vQ>  
%     Gaussian pulse given by = !I8vQ>  
%          J(t)=-J0*(t-t0)*exp(-(t-t0)^2/tau^2), = !I8vQ>  
%     where tau=50 ps.  The FWHM spectral bandwidth of this zero-dc- = !I8vQ>  
%     content pulse is approximately 7 GHz. The grid resolution = !I8vQ>  
%     (dx = 2 mm) was chosen to provide at least 10 samples per = !I8vQ>  
%     wavelength up through 15 GHz. A](}"Pi!n  
A](}"Pi!n  
%     To execute this M-file, type "fdtd3D" at the MATLAB prompt. A](}"Pi!n  
%     This M-file displays the FDTD-computed Ez fields at every other A](}"Pi!n  
%     time step, and records those frames in a movie matrix, M, which A](}"Pi!n  
%     is played at the end of the simulation using the "movie" command. A](}"Pi!n  
% A](}"Pi!n  
%*********************************************************************** A](}"Pi!n  
  A](}"Pi!n  
clear  A](}"Pi!n  
%*********************************************************************** A](}"Pi!n  
%     Fundamental constants A](}"Pi!n  
%*********************************************************************** A](}"Pi!n  
  A](}"Pi!n  
cc=2.99792458e8;            %speed of light in free space A](}"Pi!n  
muz=4.0*pi*1.0e-7;          %permeability of free space A](}"Pi!n  
epsz=1.0/(cc*cc*muz);       %permittivity of free space tF1%=&ss  
  tF1%=&ss  
%*********************************************************************** tF1%=&ss  
%     Grid parameters tF1%=&ss  
%*********************************************************************** tF1%=&ss  
ie=50;       %number of grid cells in x-direction tF1%=&ss  
je=24;       %number of grid cells in y-direction tF1%=&ss  
ke=10;       %number of grid cells in z-direction tF1%=&ss  
ib=ie+1; tF1%=&ss  
jb=je+1; tF1%=&ss  
kb=ke+1; tF1%=&ss  
  tF1%=&ss  
is=26;       %location of z-directed current source tF1%=&ss  
js=13;       %location of z-directed current source = ;d<Ikj  
  = ;d<Ikj  
kobs=5; = ;d<Ikj  
dx=0.002;          %space increment of cubic lattice = ;d<Ikj  
dt=dx/(2.0*cc);    %time step = ;d<Ikj  
  = ;d<Ikj  
nmax=500;          %total number of time steps = ;d<Ikj  
  = ;d<Ikj  
%*********************************************************************** = ;d<Ikj  
%     Differentiated Gaussian pulse excitation = ;d<Ikj  
%*********************************************************************** = ;d<Ikj  
  = ;d<Ikj  
rtau=50.0e-12; = ;d<Ikj  
tau=rtau/dt; = ;d<Ikj  
ndelay=3*tau; = ;d<Ikj  
srcconst=-dt*3.0e+11; = ;d<Ikj  
  = ;d<Ikj  
%*********************************************************************** = ;d<Ikj  
%     Material parameters = ;d<Ikj  
%*********************************************************************** = ;d<Ikj  
  = ;d<Ikj  
eps=1.0; jzQgD ed ]  
sig=0.0; jzQgD ed ]  
  jzQgD ed ]  
%*********************************************************************** jzQgD ed ]  
%     Updating coefficients jzQgD ed ]  
%*********************************************************************** ',P$m&z  
  ',P$m&z  
ca=(1.0-(dt*sig)/(2.0*epsz*eps))/(1.0+(dt*sig)/(2.0*epsz*eps)); ',P$m&z  
cb=(dt/epsz/eps/dx)/(1.0+(dt*sig)/(2.0*epsz*eps)); ',P$m&z  
da=1.0; ',P$m&z  
db=dt/muz/dx; ',P$m&z  
%*********************************************************************** ',P$m&z  
%     Field arrays ',P$m&z  
%*********************************************************************** ',P$m&z  
ex=zeros(ie,jb,kb); ',P$m&z  
ey=zeros(ib,je,kb); -nXP<v=V  
ez=zeros(ib,jb,ke); -nXP<v=V  
hx=zeros(ib,je,ke); -nXP<v=V  
hy=zeros(ie,jb,ke); -nXP<v=V  
hz=zeros(ie,je,kb); -nXP<v=V  
%*********************************************************************** -nXP<v=V  
%     Movie initialization -nXP<v=V  
%*********************************************************************** -nXP<v=V  
tview(:,:)=ez(:,:,kobs); -nXP<v=V  
sview(:,:)=ez(:,js,:); -nXP<v=V  
  -nXP<v=V  
subplot('position',[0.15 0.45 0.7 0.45]),pcolor(tview'); -nXP<v=V  
shading flat; -nXP<v=V  
*****is([-1.0 1.0]); -nXP<v=V  
colorbar; -nXP<v=V  
axis image; xDo0bR(  
title(['Ez(i,j,k=5), time step = 0']); xDo0bR(  
xlabel('i coordinate'); xDo0bR(  
ylabel('j coordinate'); xDo0bR(  
subplot('position',[0.15 0.10 0.7 0.25]),pcolor(sview'); xDo0bR(  
shading flat; xDo0bR(  
*****is([-1.0 1.0]); xDo0bR(  
colorbar; xDo0bR(  
axis image; xDo0bR(  
title(['Ez(i,j=13,k), time step = 0']); xDo0bR(  
xlabel('i coordinate'); xDo0bR(  
ylabel('k coordinate'); xDo0bR(  
rect=get(gcf,'Position'); xDo0bR(  
rect(1:2)=[0 0]; xDo0bR(  
M=moviein(nmax/2,gcf,rect); xDo0bR(  
  xDo0bR(  
%*********************************************************************** Ar)EbGId  
%     BEGIN TIME-STEPPING LOOP Ar)EbGId  
%*********************************************************************** Ar)EbGId  
for n=1:nmax Ar)EbGId  
%*********************************************************************** Ar)EbGId  
%     Update electric fields Ar)EbGId  
%*********************************************************************** Ar)EbGId  
  Ar)EbGId  
ex(1:ie,2:je,2:ke)=ca*ex(1:ie,2:je,2:ke)+... Ar)EbGId  
                   cb*(hz(1:ie,2:je,2:ke)-hz(1:ie,1:je-1,2:ke)+... Ar)EbGId  
                       hy(1:ie,2:je,1:ke-1)-hy(1:ie,2:je,2:ke)); Ar)EbGId  
ey(2:ie,1:je,2:ke)=ca*ey(2:ie,1:je,2:ke)+...  Ar)EbGId  
                   cb*(hx(2:ie,1:je,2:ke)-hx(2:ie,1:je,1:ke-1)+... Ar)EbGId  
                       hz(1:ie-1,1:je,2:ke)-hz(2:ie,1:je,2:ke)); Ar)EbGId  
ez(2:ie,2:je,1:ke)=ca*ez(2:ie,2:je,1:ke)+... Ar)EbGId  
                   cb*(hx(2:ie,1:je-1,1:ke)-hx(2:ie,2:je,1:ke)+... Uc_ }="  
                       hy(2:ie,2:je,1:ke)-hy(1:ie-1,2:je,1:ke)); Uc_ }="  
  Uc_ }="  
ez(is,js,1:ke)=ez(is,js,1:ke)+... Uc_ }="  
               srcconst*(n-ndelay)*exp(-((n-ndelay)^2/tau^2)); Uc_ }="  
%*********************************************************************** Uc_ }="  
%     Update magnetic fields Uc_ }="  
%*********************************************************************** Uc_ }="  
hx(2:ie,1:je,1:ke)=hx(2:ie,1:je,1:ke)+... Uc_ }="  
                   db*(ey(2:ie,1:je,2:kb)-ey(2:ie,1:je,1:ke)+... Uc_ }="  
                       ez(2:ie,1:je,1:ke)-ez(2:ie,2:jb,1:ke)); Uc_ }="  
hy(1:ie,2:je,1:ke)=hy(1:ie,2:je,1:ke)+... Uc_ }="  
                   db*(ex(1:ie,2:je,1:ke)-ex(1:ie,2:je,2:kb)+... Uc_ }="  
                       ez(2:ib,2:je,1:ke)-ez(1:ie,2:je,1:ke)); Uc_ }="  
hz(1:ie,1:je,2:ke)=hz(1:ie,1:je,2:ke)+... Uc_ }="  
                   db*(ex(1:ie,2:jb,2:ke)-ex(1:ie,1:je,2:ke)+... k0PwAt)65  
                       ey(1:ie,1:je,2:ke)-ey(2:ib,1:je,2:ke)); k0PwAt)65  
%************************************ .. k0PwAt)65  
k0PwAt)65  
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离线zhuoruizhuc
只看该作者 1楼 发表于: 2012-05-31
谁能帮我改一下啊,万分 .. k0PwAt)65  
k0PwAt)65  
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离线whynot910

只看该作者 2楼 发表于: 03-11
这是什么语言的代 .. K=J">^uW  
K=J">^uW  
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